/* ========== 全站设计令牌（设计稿 1920）==========
 * 断点约定：≤1199 平板，≤767 手机
 * 液态：html font-size = 100vw/192 → 1rem≈10px@1920
 */
:root {
  /* 品牌色 */
  --blue: #1f6fb8; /* 主蓝：链接/强调 */
  --blue-deep: #0d3d6e; /* 深蓝：标题/深底 */
  --blue-soft: #e8f2fa; /* 浅蓝底 */
  --blue-hero: #3d8fd4; /* Banner / Hero 渐变蓝 */
  --orange: #f39800; /* 品牌橙：指示条/进度/CTA */

  /* 中性色 */
  --ink: #1a1d23; /* 正文主色 */
  --muted: #667085; /* 次要文案 */
  --line: #e6ebf0; /* 分割线 */
  --bg: #f5f7fa; /* 浅灰区块底 */
  --white: #ffffff;
  --footer: #121820; /* 页脚深底 */

  /* 布局 */
  --max: 1200px; /* 内容区最大宽度（部分内页） */
  --header-h: 100px; /* 顶栏高度（桌面基准，实际多用 vw） */
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans", sans-serif;
  --page-pad: 8.333vw; /* 左右大边距 160/1920 */
  --page-pad-sm: 3.125vw; /* 左右小边距 60/1920 */
}

*,
*::before,
*::after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  /* 液态根字号：1920 下 10px，随屏宽缩放，限制上下限 */
  font-size: 10px;
  font-size: -webkit-calc(100vw / 192);
  font-size: calc(100vw / 192);
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  text-size-adjust: 100%;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

@media screen and (min-width: 1920px) {
  html {
    font-size: 10px;
  }
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button,
input {
  font: inherit;
}
/* 首页轮播区：桌面用 lbbj1.png（1920×870），高度 45.3125vw 封顶 870；手机见 @media≤767 */
.site-header {
  position: relative;
  width: 100%;
  overflow: hidden;
  height: 87rem; /* 870 @1920，旧写法回退 */
  height: 45.3125vw; /* 870/1920 */
  min-height: 320px;
  max-height: 870px;
  cursor: grab;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  background: #1a2a4a;
}

.site-header.is-dragging {
  cursor: grabbing;
}

/* 轮播图层：左右衔接滑动 */
.banner-slides {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 0;
}

.banner-slide {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0;
  -webkit-transform: translateX(0);
  -ms-transform: translateX(0);
  transform: translateX(0);
  pointer-events: none;
  will-change: transform, opacity;
  -webkit-transition: -webkit-transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1);
  transition: transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.banner-slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 当前图 */
.banner-slide.is-active {
  z-index: 2;
  opacity: 1;
  -webkit-transform: translateX(0);
  -ms-transform: translateX(0);
  transform: translateX(0);
}

.banner-slide.is-leave-to-left {
  z-index: 1;
  opacity: 1;
  -webkit-transform: translateX(-100%);
  -ms-transform: translateX(-100%);
  transform: translateX(-100%);
}

.banner-slide.is-leave-to-right {
  z-index: 1;
  opacity: 1;
  -webkit-transform: translateX(100%);
  -ms-transform: translateX(100%);
  transform: translateX(100%);
}

/* 轮播左侧文案：附着在每张 slide 上，随图滑动 */
.banner-caption {
  position: absolute;
  left: 8.333vw;
  top: 50%;
  z-index: 2;
  width: 42%;
  max-width: 620px;
  -webkit-transform: translateY(-46%);
  -ms-transform: translateY(-46%);
  transform: translateY(-46%);
  color: #fff;
  pointer-events: none;
}

.banner-slide.is-active .banner-caption-btn {
  pointer-events: auto;
}

.banner-caption-title {
  margin: 0 0 16px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(28px, 2.5vw, 48px);
  font-weight: bold;
  line-height: 1.25;
  color: #fff;
}

.banner-caption-tags {
  margin: 0 0 18px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(13px, 0.938vw, 18px);
  font-weight: normal;
  line-height: 1.5;
  color: #fff;
}

.banner-caption-desc {
  margin: 0 0 28px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(13px, 0.833vw, 16px);
  font-weight: normal;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.92);
  text-align: justify;
}

.banner-caption-btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 999px;
  background: #3b82c4;
  color: #fff;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.2;
  text-decoration: none;
  pointer-events: auto;
  cursor: pointer;
  -webkit-transition: background 0.2s ease, opacity 0.2s ease;
  transition: background 0.2s ease, opacity 0.2s ease;
}

.banner-caption-btn:hover {
  background: #2f6fad;
}

/* 轮播底栏：左进度、中鼠标，同一行 */
.banner-footer {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 48px;
  height: 32px;
  z-index: 4; /* 高于 slide，避免被盖住 */
}

.banner-pager {
  position: absolute;
  left: 8.333vw; /* 160/1920 */
  top: 50%;
  -webkit-transform: translateY(-50%);
  -ms-transform: translateY(-50%);
  transform: translateY(-50%);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 14px;
  color: #fff;
  font-size: 1.6rem;
  font-family: var(--font);
  letter-spacing: 1px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.banner-pager-track {
  width: 110px;
  height: 2px;
  background: rgba(255, 255, 255, 0.35);
  overflow: hidden;
}

.banner-pager-bar {
  height: 100%;
  width: 20%; /* 第 1 张 = 1/5 */
  background: #ed6c00;
  -webkit-transition: width 0.45s ease;
  transition: width 0.45s ease;
}
.banner-pager-cur,.banner-pager-total{
  font-family: Source Han Sans;
  font-size: 18px;
  color: #FFFFFF;
}

.banner-mouse {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 32px;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

/* 顶栏：fixed 叠在轮播上；高度 5.208vw（100/1920），夹在 56~100px；对应 --header-h */
.nav-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  max-width: 100%;
  height: 100px;
  height: 5.208vw; /* 100/1920 */
  min-height: 56px;
  max-height: 100px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding-left: 3.125vw;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: background 0.25s ease;
  transition: background 0.25s ease;
}

.nav-left,
.nav-right {
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

/* 离开顶部时：加深底色，避免正文透出叠在导航上 */
.nav-wrapper.is-scrolled {
  background: rgba(26, 45, 82, 0.96);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  margin-right: 16px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 3px 0;
  background: #fff;
}

.nav-left {
  flex-shrink: 0;
}

.site-header-logo {
  width: 14.0625vw;
  max-width: 270px;
  min-width: 120px;
  height: auto;
  max-height: 60px;
  object-fit: contain;
  cursor: pointer;
}

.nav-center {
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  width: auto;
  max-width: none;
  min-width: 0;
  margin: 0 1.5vw;
  gap: clamp(10px, 1.6vw, 32px);
  color: #fff;
  line-height: 26px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1.8rem;
  -ms-flex-negative: 1;
  flex-shrink: 1;
}

.nav-center-item {
  position: relative;
  padding: 4px 0 8px;
  cursor: pointer;
  height: 100%;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.nav-center-item a {
  color: #fff;
  white-space: nowrap;
}

.nav-link-parent {
  cursor: default;
}

@media screen and (max-width: 767px) {
  .nav-link-parent {
    cursor: pointer;
  }
}

/* 一级行：桌面仅显示链接；手机端右侧展开按钮 */
.nav-item-row {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  height: 100%;
}

.nav-sub-toggle {
  display: none;
  -webkit-box-flex: 0;
  -ms-flex: 0 0 auto;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  margin-left: auto;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  position: relative;
}

.nav-sub-toggle::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 8px;
  height: 8px;
  margin: -6px 0 0 -4px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  -webkit-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
  -webkit-transition: -webkit-transform 0.2s ease;
  transition: transform 0.2s ease;
}

.nav-center-item.has-sub.is-expanded .nav-sub-toggle::before {
  margin-top: -2px;
  -webkit-transform: rotate(-135deg);
  -ms-transform: rotate(-135deg);
  transform: rotate(-135deg);
}

/* 产品中心手机二级（桌面用 mega menu，此处隐藏） */
.nav-sub {
  display: none;
}

/* 工程服务：小下拉框 */
.nav-services-dropdown {
  position: absolute;
  left: 50%;
  top: 100%;
  z-index: 110;
  min-width: 120px;
  margin-top: 0;
  padding: 0;
  background: #fff;
  border-top: 3px solid #ed6c00;
  -webkit-box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: opacity 0.15s ease, visibility 0.15s ease;
  transition: opacity 0.15s ease, visibility 0.15s ease;
}

.nav-center-item.services:hover .nav-services-dropdown,
.nav-center-item.services.is-open .nav-services-dropdown {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.nav-services-dropdown a {
  display: block;
  padding: 14px 24px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.4;
  color: #333 !important;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 0;
}

/* 中间分割线：1px #D8D8D8，左侧 9px 橙色开头 #ED6D01 */
.nav-services-dropdown a:first-child {
  position: relative;
}

.nav-services-dropdown a:first-child::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: -webkit-linear-gradient(
    left,
    #ed6d01 0,
    #ed6d01 9px,
    #d8d8d8 9px,
    #d8d8d8 100%
  );
  background: linear-gradient(
    to right,
    #ed6d01 0,
    #ed6d01 9px,
    #d8d8d8 9px,
    #d8d8d8 100%
  );
}

.nav-services-dropdown a:last-child {
  border-bottom: 0;
}

.nav-services-dropdown a:hover {
  color: #ed6c00 !important;
  background: #fafafa;
}

/* 滑动切换的橙色指示条：贴在 nav 底部边框上 */
.nav-indicator {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 3px;
  width: 0;
  background: #ED6C00;
  transform: translateX(0);
  transition: transform 0.3s ease, width 0.3s ease;
  pointer-events: none;
}

.nav-right {
  display: flex;
  align-items: center;
  height: 100%;
  width: initial;
}

.nav-right-item.phone {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  font-size: 16px;
  letter-spacing: 0.5px;
  margin-right: 28px;
  white-space: nowrap;
}

.nav-right-item.phone a {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 8px;
  color: inherit;
}

.nav-right-item.phone img {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.nav-right-item.search {
  /* 与 .nav-wrapper 同高，缩放时保持齐平 */
  width: 100px;
  width: 5.208vw;
  height: 100%;
  min-width: 56px;
  max-width: 100px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  background: #1a2d52;
  cursor: pointer;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: background 0.2s;
  transition: background 0.2s;
}

.nav-right-item.search:hover {
  background: #152440;
}

.nav-right-item.search .search-icon {
  width: 20px;
  height: 20px;
}

/* 产品中心全宽下拉：1920×200，四列居中、列宽 260 */
.nav-product-dropdown {
  position: absolute;
  left: 0;
  top: 100%;
  z-index: 101;
  width: 100%;
  height: 200px;
  height: 10.417vw;
  min-height: 140px;
  max-height: 200px;
  background: #fff;
  -webkit-box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.nav-wrapper.product-drop-open .nav-product-dropdown {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

/* 下拉激活时的页面遮罩（低于 nav，高于内容） */
.nav-dropdown-mask {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 99;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  -webkit-transition: opacity 0.2s ease, visibility 0.2s ease;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.nav-dropdown-mask.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.nav-drop-item {
  position: relative;
  width: 260px;
  min-width: 260px;
  max-width: 260px;
  height: 100%;
  -webkit-box-flex: 0;
  -ms-flex: 0 0 260px;
  flex: 0 0 260px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  padding: 12px 8px;
  text-decoration: none;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.nav-drop-item + .nav-drop-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18%;
  bottom: 18%;
  width: 1px;
  background: #e8e8e8;
}

/* 图标图含文案，约 216×200；悬停切换 menu*-hover（选中态） */
.nav-drop-icon {
  position: relative;
  width: 6.25vw; /* 120/1920 */
  height: 8.33vw; /* 160/1920 */
  min-width: 88px;
  min-height: 120px;
  max-width: 140px;
  max-height: 168px;
}

.nav-drop-img {
  position: absolute;
  left: 50%;
  top: 50%;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  -webkit-transition: opacity 0.2s ease;
  transition: opacity 0.2s ease;
}

.nav-drop-img.is-hover {
  opacity: 0;
}

.nav-drop-item:hover .nav-drop-img.is-default {
  opacity: 0;
}

.nav-drop-item:hover .nav-drop-img.is-hover {
  opacity: 1; /* 选中态：彩色机身 + 橙色图内文字 */
}

.main{
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: auto;
  /* 勿单独设 overflow-x:hidden，否则 overflow-y 会变成 auto 出现多余滚动条 */
  overflow: visible;
}

.site-footer{
width: 100%;
max-width: 100%;
min-width: 0;
height: auto;
min-height: 490px;
background: #232231;
overflow: visible;
}

.product-center{
  height: auto;
  min-height: 45.47vw;
  max-height: none;
  width: 100%;
  background-color: #fff;
  padding: 5.208vw 8.333vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.product-container{
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.product-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 52px;
  flex-shrink: 0;
}

.product-title{
  font-family: Source Han Sans, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 46px;
  font-weight: bold;
  line-height: 36px;
  text-transform: uppercase;
  color: #222222;
}

.product-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: 1px dashed #c8cdd6;
  color: #666;
  font-size: 14px;
  line-height: 1;
}

.go-icon {
  width: 7px;
  height: 12px;
  display: block;
  flex-shrink: 0;
}

.product-body {
  flex: 1;
  min-height: 0;
  display: flex;
  gap: 40px;
  -webkit-box-align: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
}

/* 左侧列表：左时间轴 | 右（列表+按钮） */
.product-nav {
  width: 300px;
  flex-shrink: 0;
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 20px;
}

.product-nav-track {
  position: relative;
  width: 14px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  gap: 50px; /* 与产品列表间距一致 */
  padding: 10px 0;
  /* 底部留出按钮高度，圆点只对齐产品列表 */
  padding-bottom: 68px;
}

.product-nav-track::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 16px;
  bottom: 0;
  width: 1px;
  background: #D8D8D8;
  transform: translateX(-50%);
}

.product-nav-dot {
  position: relative;
  z-index: 1;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid #c0c5ce;
  background: #fff;
  box-sizing: border-box;
  flex-shrink: 0;
  margin-top: 32px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.product-nav-dot.active {
  border-color: #ed6c00;
  background: #fff;
}

.product-nav-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: 32px;
}

.product-nav-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: start;
  gap: 42px;
}

.product-nav-item {
  cursor: pointer;
  padding: 4px 0;
}

/* 手机端才显示列表旁缩略图 + MORE */
.product-nav-media {
  display: none;
}

.product-nav-cn {
  margin: 0;
  line-height: 1.4;
  font-family: Source Han Sans;
font-size: 18px;
color: #333333;
}

.product-nav-item.active .product-nav-cn {
font-family: Source Han Sans;
font-size: 18px;
font-weight: bold;
color: #333333;
}

.product-nav-en {
  margin: 4px 0 0;
  line-height: 1.2;
font-family: Source Han Sans;
font-size: 12px;
font-weight: 350;
text-transform: uppercase;
color: #555555;
	
}


.product-nav-item.active .product-nav-en {
font-family: Source Han Sans;
font-size: 12px;
font-weight: 500;
color: #555555;
  }
  

.product-nav-btns {
  display: flex;
  gap: 10px;
  margin-top: 28px;
}

.product-nav-btn {
  border: 1px solid #D0D6E2;
  background: #fff;
  color: #888;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  width: 43px;
  height: 43px;
  border-radius: 4px;
  -webkit-transition: background 0.2s ease, border-color 0.2s ease;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.product-nav-btn img {
  width: 15px;
  height: 9px;
  display: block;
  -webkit-transition: -webkit-filter 0.2s ease;
  transition: filter 0.2s ease;
}

/* 悬浮：紫色底；描边图标反白 */
.product-nav-btn:hover {
  background: #4d3594;
  border-color: #4d3594;
  color: #fff;
}

.product-nav-btn:hover img {
  -webkit-filter: brightness(0) invert(1);
  filter: brightness(0) invert(1);
}

/* 右侧展示：信息卡 + 大图（等高对齐，随屏宽等比） */
.product-showcase {
  flex: 1;
  min-width: 0;
  width: auto; /* 勿写死 1244，否则缩放错位 */
  height: auto;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: stretch;
  -ms-flex-align: stretch;
  align-items: stretch;
}

.product-info {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 30%;
  flex: 0 0 30%;
  max-width: 374px;
  width: auto;
  min-width: 200px;
  background: #eef0f4;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  padding: 3.125vw; /* 60/1920，随屏缩放 */
  padding-bottom: 36px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  position: relative;
}

.product-info-logo {
  width: 78px;
  height: 120px;
  margin-bottom: 28px;
  object-fit: contain;
  transition: opacity 0.3s ease;
}

.product-info-name {
  margin: 0;
  line-height: 1.4;
  transition: opacity 0.3s ease;
  font-family: Source Han Sans;
  font-size: 28px;
  font-weight: 500;
  color: #232323;
}

.product-info-model {
  margin: 10px 0 0;
  transition: opacity 0.3s ease;
  font-family: Source Han Sans;
  font-size: 16px;
  font-weight: normal;
  color: #444444;
}

.product-info-more {
  margin-top: auto; /* 贴底，随等高拉伸 */
  padding-top: 24px;
  font-size: 14px;
  letter-spacing: 1px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* 大图区：以素材比例撑高，信息卡 stretch 对齐 */
.product-visual {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  min-width: 0;
  height: auto;
  aspect-ratio: 1305 / 855; /* 产品图尺寸 */
  position: relative;
  overflow: hidden;
  background: #f5f6f8;
}

.product-visual-img {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.35s ease;
}

.product-showcase.is-switching .product-info-logo,
.product-showcase.is-switching .product-info-name,
.product-showcase.is-switching .product-info-model,
.product-showcase.is-switching .product-visual-img {
  opacity: 0;
}

/* 关于天成宇 */
.about-section {
  position: relative;
  width: 100%;
  min-height: 760px;
  height: auto;
  background: url("../img/gybj.png") no-repeat center center;
  background-size: cover;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.about-content {
  position: relative;
  width: 100%;
  padding: 5.208vw 0 6.25vw 8.281vw; /* 底≈120px */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.about-title {
  margin: 0;
  width: max-content; /* 与标题文字同宽，左对齐 */
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 46px;
  font-weight: bold;
  line-height: 36px;
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #222222;
}

.about-desc {
  margin-top: 36px;
  max-width: 640px;
}

.about-desc p {
  margin: 0 0 16px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 32px;
  text-align: justify;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #373f4d;
}

.about-more {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 8px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #373f4d;
}

.about-more-line {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 79px;
  height: 0;
  border-bottom: 1px solid rgba(185, 192, 231, 0.4);
}

.about-stats {
  position: relative;
  margin-top: 65px; /* 距「查看更多」65px */
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  -webkit-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  width: -webkit-max-content;
  width: max-content;
  max-width: 90%;
}

/* 标注：每列宽 160px，标签左对齐，三列整体水平居中 */
.about-stat-item {
  position: relative;
  width: 160px;
  flex: 0 0 160px;
  box-sizing: border-box;
  text-align: left;
  padding: 0;
}

.about-stat-item + .about-stat-item {
  margin-left: 32px;
}

.about-stat-item + .about-stat-item::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: rgba(185, 192, 231, 0.5);
}

.about-stat-num {
  margin: 0;
  color: #f47308;
  font-family: "Source Han Sans CN", "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 500;
  line-height: 36px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
}

.about-stat-num-main {
  font-size: 66px;
  font-weight: 500;
  line-height: 1;
}

.about-stat-num-unit {
  font-size: 20px;
  font-weight: 500;
  margin-left: 2px;
}

.about-stat-label {
  margin: 12px 0 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  font-weight: normal;
  line-height: 36px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #373f4d;
}

/* 案例中心 */
.case-section {
  width: 100%;
  background: #fff;
  padding: 5.208vw 0 4.167vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  overflow: hidden;
}

.case-container {
  width: 100%;
  padding-left: 8.333vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.case-head {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  padding-right: 8.333vw;
  margin-bottom: 5.5rem; /* 55px @1920 */
}

.case-card {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 31.0vw;
  flex: 0 0 31.0vw;
  width: 31.0vw;
  max-width: 495px;
  min-width: 260px;
}

.case-card-img {
  width: 100%;
  height: auto;
  aspect-ratio: 595 / 320;
  max-height: 320px;
  object-fit: cover;
  display: block;
}

.case-title {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 46px;
  font-weight: bold;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #222222;
}

.case-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #666666;
}

.case-more .go-icon {
  width: 7px;
  height: 12px;
}

.case-list-wrap {
  overflow: hidden;
}

.case-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 24px;
  -webkit-transition: -webkit-transform 0.4s ease;
  transition: transform 0.4s ease;
}

.case-card-date {
  margin: 20px 0 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #999999;
}

.case-card-name {
  display: block;
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 22px;
  font-weight: normal;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #222222;
  text-decoration: none;
  -webkit-transition: color 0.25s ease;
  transition: color 0.25s ease;
}

.case-card-name:hover {
  color: #ed6c00;
}

.case-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 31px; /* MORE 距图片标题 31px */
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ed6c00;
}

.case-card-link .go-icon {
  width: 7px;
  height: 12px;
}

.case-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 40px;
  width: 100%;
}

.case-btn {
  width: 43px;
  height: 43px;
  border: 1px solid #d0d4dc;
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  -webkit-transition: background 0.2s ease, border-color 0.2s ease;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.case-btn img {
  width: 7px;
  height: 12px;
  display: block;
  /* 默认黑色箭头（与产品详情左右键一致） */
  -webkit-filter: brightness(0);
  filter: brightness(0);
  -webkit-transition: -webkit-filter 0.2s ease;
  transition: filter 0.2s ease;
}

.case-btn.prev img {
  transform: scaleX(-1);
}

/* 悬浮：紫色底 + 白色箭头 */
.case-btn:hover {
  background: #4d3594;
  border-color: #4d3594;
}

.case-btn:hover img {
  -webkit-filter: brightness(0) invert(1);
  filter: brightness(0) invert(1);
}

.case-progress {
  flex: 1;
  min-width: 0;
  height: 1px; /* 灰色轨道拉到屏边 */
  background: #e6e8ee;
  margin-left: 12px;
  position: relative;
  display: flex;
  align-items: center;
}

/* 固定装饰橙线：170×3，不随轮播移动 */
.case-progress-bar {
  width: 170px;
  height: 3px;
  background: #ed6c00;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.footer-main{
width: 100%;
max-width: 100%;
min-width: 0;
height: auto;
min-height: 410px;
display: flex;
flex-direction: row;
align-items: flex-start;
justify-content: flex-start;
padding: 3.125vw 8.333vw 0; /* 60 / 160，与首页液态边距一致 */
box-sizing: border-box;
overflow: hidden; /* 防止子项撑出横向白边 */
}

/* 中间三栏：随屏宽伸缩，避免固定 280px 在中等宽度撑出横向滚动 */
.footer-main > .footer-col:nth-child(2),
.footer-main > .footer-col:nth-child(3),
.footer-main > .footer-col:nth-child(4) {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 0;
  flex: 1 1 0;
  width: auto;
  max-width: 280px;
  min-width: 0;
  position: relative;
  padding: 0 1.5vw;
  box-sizing: border-box;
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  align-items: center; /* 内层整块水平居中 */
}

/* 标题+链接作为一块：水平居中，内部文字左对齐 */
.footer-col-inner {
  width: max-content;
  max-width: 100%;
  text-align: left;
}

.footer-main > .footer-col:nth-child(2)::before,
.footer-main > .footer-col:nth-child(3)::before,
.footer-main > .footer-col:nth-child(4)::before,
.footer-main > .footer-col:nth-child(4)::after {
  content: "";
  position: absolute;
  top: 0; /* 与三列内容顶部对齐 */
  width: 1px;
  height: 240px;
  background: rgba(255, 255, 255, 0.2);
}

.footer-main > .footer-col:nth-child(2)::before,
.footer-main > .footer-col:nth-child(3)::before,
.footer-main > .footer-col:nth-child(4)::before {
  left: 0;
}

.footer-main > .footer-col:nth-child(4)::after {
  right: 0;
}

/* 二维码：随剩余空间排布，避免固定外边距撑破版心 */
.footer-qr {
  -ms-flex-negative: 1;
  flex-shrink: 1;
  align-self: flex-start;
  margin-left: 3vw;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  min-width: 0;
}

.footer-qr-img {
  width: 160px;
  height: 160px;
  object-fit: contain;
  display: block;
  background: #fff;
}

.footer-qr p {
  margin: 0;
  width: 160px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 26px;
  text-align: right;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.footer-title {
  margin: 0 0 20px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  font-weight: normal;
  line-height: normal;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.footer-links {
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 28px;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: rgba(255, 255, 255, 0.5);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-right: auto; /* 品牌靠左，其余靠右排布 */
  -ms-flex-negative: 1;
  flex-shrink: 1;
  min-width: 0;
  max-width: 320px;
}

.footer-logo {
  width: 200px;
  height: auto;
  object-fit: contain;
}

.footer-hotline {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-hotline-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 400;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.5);
  font-variation-settings: "opsz" auto;
}

.footer-phone-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  opacity: 0.5; /* 图标底色为白，用透明度得到 rgba(255,255,255,0.5) */
}

.footer-hotline-num {
  margin: 0;
  padding-left: 24px; /* 与图标对齐：16 + 8 */
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 400;
  font-size: 32px;
  line-height: 30px;
  letter-spacing: 0.04em;
  color: #ffffff;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
}

.footer-address {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 28px;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.footer-copy{
width: 100%;
min-height: 80px;
height: auto;
display: flex;
flex-direction: row;
align-items: center;
justify-content: center;
padding: 16px 8.333vw; /* 与首页左右边距一致 */
box-sizing: border-box;
border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-copy-text{
  font-family: Source Han Sans;
  font-size: 16px;
  font-weight: normal;
  color: #FFFFFF;
}

/* ========== 内页横幅（背景图由 JS PAGE_BANNERS 注入 img） ========== */
.page-banner {
  position: relative;
  width: 100%;
  max-width: 100%;
  /* 与首页 header 同一套液态写法：rem + vw + min/max */
  height: 54rem; /* 540 @1920 */
  height: 28.125vw;
  min-height: 220px;
  max-height: 540px;
  overflow: hidden;
  background: #1a2d52; /* 图加载前占位色 */
}

.page-banner-bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  max-width: none; /* 覆盖全局 img{max-width:100%}，避免铺不满 */
  object-fit: cover;
  object-position: center center;
  display: block;
  z-index: 0;
  pointer-events: none;
}

.page-banner-title {
  position: absolute;
  left: 50%;
  top: 50%;
  margin: 0;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 4.8rem;
  font-size: 2.5vw;
  font-weight: bold;
  line-height: 1.2;
  color: #fff;
  white-space: nowrap;
  z-index: 1;
}

.page-banner-crumb {
  position: absolute;
  left: 8.333vw; /* 160/1920 */
  bottom: 2.4rem;
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1.4rem;
  line-height: 1.5;
  color: #fff;
  z-index: 1;
}

/* 产品列表：左右 160、图间距 50、上下 80 */
.products-list {
  width: 100%;
  padding: 80px 8.333vw 0; /* 上 80，下由卡片 padding-bottom 承担 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
}

.products-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

.product-card {
  display: block;
  width: -webkit-calc(50% - 25px);
  width: calc(50% - 25px);
  margin-bottom: 80px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  text-decoration: none;
  color: inherit;
}

.product-card:nth-child(odd) {
  margin-right: 50px;
}

.product-card-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 775 / 509;
  object-fit: cover;
  vertical-align: top;
}

.product-card-bar {
  background: #5a9ec9;
  padding: 18px 24px 16px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.product-card-name {
  margin: 0 0 10px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1.8rem;
  font-weight: normal;
  line-height: 1.4;
  color: #fff;
}

.product-card-arrow {
  display: block;
  width: 21px;
  height: 13px;
}

/* ========== 联系我们 ========== */
.contact-section {
  width: 100%;
  padding: 5.781vw 8.333vw; /* ≈111 / 160 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
}

/* 总宽 1600×640：左信息 + 右地图 */
.contact-panel {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  width: 100%;
  max-width: 1600px;
  height: 640px;
  margin: 0 auto;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  overflow: hidden;
  border: 1px solid #e6ebf0;
}

.contact-info {
  width: 630px;
  max-width: 39.375%;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  padding: 43px 49px 49px;
  background: #376DBE;
  color: #fff;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}

.contact-company {
  margin: 0;
font-family: Source Han Sans;
font-size: 26px;
font-weight: bold;
line-height: 36px;
text-align: justify; /* 浏览器可能不支持 */
text-transform: uppercase;
letter-spacing: 0em;
	
font-variation-settings: "opsz" auto;
font-feature-settings: "kern" on;
color: #FFFFFF;
	
}

.contact-line {
  width: 100%;
  height: 1px;
  margin: 20px 0;
  border: 0;
  /* 左侧 20px 纯白，其余半透明 */
  background: -webkit-linear-gradient(
    left,
    #ffffff 0,
    #ffffff 20px,
    rgba(255, 255, 255, 0.35) 20px,
    rgba(255, 255, 255, 0.35) 100%
  );
  background: linear-gradient(
    to right,
    #ffffff 0,
    #ffffff 20px,
    rgba(255, 255, 255, 0.35) 20px,
    rgba(255, 255, 255, 0.35) 100%
  );
}

.contact-rows {
  margin: 0;
}

.contact-hotline {
  margin: 0 0 16px;
}

.contact-hotline-label {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 400;
  font-size: 16px;
  line-height: 30px;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: rgba(255, 255, 255, 0.5);
}

.contact-row-icon {
  width: 16px;
  height: 16px;
  margin-right: 8px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  opacity: 0.5;
}

.contact-hotline-num {
  margin: 4px 0 0;
  padding-left: 24px; /* 与图标对齐：16 + 8 */
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-weight: 400;
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.contact-row-addr {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 28px;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.contact-bank {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 30px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.contact-bank p {
  margin: 0;
}

.contact-qr-block {
  margin-top: auto;
  padding-top: 24px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

.contact-qr {
  width: 128px;
  height: 128px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  object-fit: contain;
  background: #fff;
}

.contact-qr-text {
  margin-left: 24px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 26px;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #ffffff;
}

.contact-qr-text p {
  margin: 0;
}

.contact-map {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  min-width: 0;
  height: 100%;
  background: #f0f3f6;
}

.contact-map img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ========== 关于我们内页 ========== */
.about-page-intro {
  width: 100%;
  padding: 80px 8.333vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
  /* 锚点 #intro：避开固定顶栏 */
  scroll-margin-top: 100px;
  scroll-margin-top: 5.208vw;
}

.about-page-intro-inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  max-width: 1600px;
  margin: 0 auto;
}

.about-page-intro-left {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  min-width: 0;
  padding-right: 60px;
}

.about-page-title {
  margin: 0 0 36px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 46px;
  font-weight: bold;
  line-height: 1.2;
  color: #222222;
}

.about-page-desc p {
  margin: 0 0 16px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  font-weight: normal;
  line-height: 25px;
  color: #222222;
}
.desc-label {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 10px;
  vertical-align: middle;
  background-color: transparent;
  /* 三个顶点均圆角、尖头朝右；尺寸 6×6、颜色 #ed6c00 */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 6 6'%3E%3Cpath fill='%23ed6c00' d='M1.2 1.6 C1.2 1.05 1.55 0.75 1.95 0.95 L4.7 2.55 C5.2 2.85 5.2 3.15 4.7 3.45 L1.95 5.05 C1.55 5.25 1.2 4.95 1.2 4.4 Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100% 100%;
}
.about-page-stats {
  margin-top: 48px;
}

.about-page-intro-right {
  position: relative;
  width: 38.4375vw; /* 738/1920 */
  max-width: 738px;
  min-width: 260px;
  height: 40.3125vw; /* 774/1920 */
  max-height: 774px;
  min-height: 280px;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  overflow: hidden;
  /* 设计稿有机圆角：上大、右上更鼓、底略小 */
  /* -webkit-border-radius: 32% 48% 40% 36% / 38% 48% 32% 30%;
  border-radius: 32% 48% 40% 36% / 38% 48% 32% 30%; */
  -webkit-border-radius:  50% 20% 50% 20%;
  border-radius: 50% 20% 50% 20%;
  background: url('../img/gsbj.png') no-repeat;
  background-position-x: 90%;
  background-position-y: 94%;
  background-size: 268%;
}

.about-page-intro-right img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.about-sec-title {
  margin: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 32px;
  font-weight: bold;
  line-height: 1.3;
  color: #222222;
}

.about-sec-mark {
  display: block;
  width: 4px;
  height: 28px;
  margin-right: 12px;
  background: #ed6c00;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.about-qualify {
  width: 100%;
  padding: 0; /* 桌面边距由 .about-qualify-bg 承担；手机端媒体查询再设 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
  /* 锚点 #qualify */
  scroll-margin-top: 100px;
  scroll-margin-top: 5.208vw;
}

.about-qualify-inner {
  position: relative;
  max-width: 1600px;
  margin: 0 auto;
}

.about-qualify-bg {
  background: url('../img/zz.png') no-repeat;
  background-size: 100%;
  width: 100%;
  height: 760px;
  padding: 105px 158px;
}

/* 文字悬浮在资质图上方 */
.about-qualify-left {
  position: absolute;
  left: 0;
  z-index: 2;
  width: 649px;
  padding: 0;
  pointer-events: none;
}

.about-qualify-left .about-sec-title,
.about-qualify-left .about-qualify-desc {
  pointer-events: auto;
}

.about-qualify-desc {
  margin: 24px 0 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  font-weight: normal;
  line-height: 35px;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #222222;
}

.about-qualify-desc p {
  margin: 0 0 1em;
}

.about-qualify-desc p:last-child {
  margin-bottom: 0;
}

/* 桌面用背景图，独立图片区块默认隐藏 */
.about-qualify-media {
  display: none;
}

.about-qualify-right {
  width: 100%;
}

.about-qualify-right img {
  display: block;
  width: 100%;
  height: 760px;
  object-fit: cover;
  object-position: center top;
}

.about-news {
  width: 100%;
  /* 距上一段 103，左右约 158 */
  padding: 103px 8.229vw 80px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
  /* 锚点 #news */
  scroll-margin-top: 100px;
  scroll-margin-top: 5.208vw;
}

.about-news-inner {
  max-width: 1578px;
  margin: 0 auto;
}

.about-news-head {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  margin-bottom: 40px;
}

.about-news-more {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 6px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  color: #ed6c00;
  text-decoration: none;
}

.about-news-body {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
}

.about-news-cards {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.about-news-card {
  width: 495px;
  margin-right: 24px;
}

.about-news-card-img {
  display: block;
  width: 495px;
  height: 320px;
  max-width: 100%;
  object-fit: cover;
  border-radius: 14px;
}

.about-news-card-date {
  margin: 16px 0 8px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #999;
}

.about-news-card-title {
  display: block;
  margin: 0 0 12px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  font-weight: bold;
  line-height: 1.4;
  color: #222;
  text-decoration: none;
  -webkit-transition: color 0.25s ease;
  transition: color 0.25s ease;
}

.about-news-card-title:hover {
  color: #ed6c00;
}

.about-news-card-link {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 6px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #ed6c00;
  text-decoration: none;
}

/* 右侧列表卡片：宽 424、左 26、上 15 */
.right-list {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  min-width: 0;
  padding-left: 40px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  gap: 16px;
}

.list-item {
  width: 100%;
  max-width: 100%;
  min-height: 140px;
  padding: 15px 26px 12px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  border-radius: 14px;
  background: #f1f1f1;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}

.list-item-date {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.4;
  color: #999;
}

.list-item-title {
  display: block;
  margin: 8px 0 0;
  max-width: 386px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  font-weight: bold;
  line-height: 1.4;
  color: #222222;
  text-decoration: none;
  -webkit-transition: color 0.25s ease;
  transition: color 0.25s ease;
}

.list-item-title:hover {
  color: #ed6c00;
}

.list-item-link {
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 12px;
  width: -webkit-max-content;
  width: max-content;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #ed6c00;
  text-decoration: none;
  border-bottom: 2px solid #ed6c00;
  padding-bottom: 2px;
}

/* ========== 工程服务 ========== */
.services-list {
  width: 100%;
  padding: 80px 8.333vw; /* 上 80 / 左右 160 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
}

.services-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  max-width: 1600px;
  margin: 0 auto;
}

/* 三列液态：随容器宽度缩放，避免固定 495 留白/错位 */
.service-card {
  width: -webkit-calc((100% - 114px) / 3);
  width: calc((100% - 114px) / 3); /* 两道 57px 间距 */
  max-width: 100%;
  margin-right: 57px;
  margin-bottom: 48px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

/* 每行第 3 个去掉右边距：1 2 3 | 4 5 6 | 7 8 */
.service-card:nth-child(3n) {
  margin-right: 0;
}

.service-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.service-card-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 495 / 320;
  object-fit: cover;
}

.service-card-date {
  margin: 18px 0 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: normal;
  line-height: 36px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #999999;
}

.service-card-title {
  margin: 0 0 12px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 20px;
  font-weight: normal;
  line-height: 30px;
  text-align: justify;
  text-transform: uppercase;
  letter-spacing: 0em;
  font-variation-settings: "opsz" auto;
  font-feature-settings: "kern" on;
  color: #222222;
}

/* 灰分割线 + 左侧 30×3 橙色起始段 */
.service-card-line {
  position: relative;
  display: block;
  width: 100%;
  height: 0;
  border-top: 1px solid #d8d8d8;
}

.service-card-line i {
  position: absolute;
  left: 0;
  top: -2px;
  width: 30px;
  height: 3px;
  background: #ed6c00;
}

/* 列表分页 */
.list-pagination {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding-top: 8px;
}

.list-page-nums {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 8px;
}

.list-page-btn,
.list-page-num {
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid #d8d8d8;
  border-radius: 2px;
  background: #fff;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #333;
  cursor: pointer;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.list-page-btn.is-prev::before,
.list-page-btn.is-next::before {
  content: "";
  width: 8px;
  height: 8px;
  border-top: 1.5px solid currentColor;
  border-right: 1.5px solid currentColor;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.list-page-btn.is-prev::before {
  -webkit-transform: rotate(-135deg);
  transform: rotate(-135deg);
  margin-left: 3px;
}

.list-page-btn.is-next::before {
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  margin-right: 3px;
}

.list-page-num.is-active {
  background: #ed6c00;
  border-color: #ed6c00;
  color: #fff;
  cursor: default;
}

.list-page-btn:hover:not(:disabled),
.list-page-num:hover:not(.is-active) {
  border-color: #ed6c00;
  color: #ed6c00;
}

.list-page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ========== 工程服务详情 ========== */
.detail-article {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 80px 8.333vw 100px; /* 左右 160 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.detail-title {
  margin: 0;
  text-align: center;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 32px;
  font-weight: bold;
  line-height: 1.4;
  color: #222222;
}

.detail-meta {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  margin: 28px 0 36px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e8e8e8;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  color: #999;
}

.detail-share {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 10px;
}

.detail-share-btn {
  display: inline-block;
  width: 30px;
  height: 30px;
  line-height: 0;
}

.detail-share-btn img {
  display: block;
  width: 30px;
  height: 30px;
}

.detail-share-btn:hover {
  opacity: 0.85;
}

/* 微信分享：扫码弹层 */
.share-wx-panel,
.share-wx-guide {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 300;
  width: 100%;
  height: 100%;
  display: none;
}

.share-wx-panel.is-open,
.share-wx-guide.is-open {
  display: block;
}

.share-wx-mask,
.share-wx-guide-mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.share-wx-box {
  position: relative;
  z-index: 1;
  width: 90%;
  max-width: 320px;
  margin: 18vh auto 0;
  padding: 24px 20px 20px;
  background: #fff;
  text-align: center;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
}

.share-wx-box h3 {
  margin: 0 0 8px;
  font-size: 18px;
  color: #222;
}

.share-wx-tip {
  margin: 0 0 16px;
  font-size: 13px;
  color: #666;
}

.share-wx-qr {
  width: 160px;
  height: 160px;
  margin: 0 auto 12px;
  background: #f5f5f5;
}

.share-wx-qr img {
  display: block;
  width: 160px;
  height: 160px;
}

.share-wx-url {
  margin: 0 0 16px;
  padding: 0 8px;
  font-size: 12px;
  line-height: 1.4;
  color: #999;
  word-break: break-all;
}

.share-wx-actions {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 10px;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
}

.share-wx-copy,
.share-wx-close,
.share-wx-guide-close {
  min-width: 96px;
  height: 36px;
  padding: 0 14px;
  border: 0;
  font-size: 14px;
  cursor: pointer;
}

.share-wx-copy {
  background: #07c160;
  color: #fff;
}

.share-wx-close,
.share-wx-guide-close {
  background: #eee;
  color: #333;
}

.share-wx-guide-box {
  position: relative;
  z-index: 1;
  width: 86%;
  max-width: 300px;
  margin: 20vh auto 0;
  padding: 28px 20px 20px;
  background: #fff;
  text-align: center;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.share-wx-guide-box p {
  margin: 0 0 10px;
  font-size: 15px;
  color: #333;
  line-height: 1.5;
}

.share-wx-guide-box strong {
  color: #07c160;
  font-size: 18px;
}

.detail-body {
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 32px;
  color: #333;
  text-align: justify;
}

.detail-body p {
  margin: 0 0 20px;
}

.detail-img {
  display: block;
  width: 826px;
  max-width: 100%;
  height: 543px;
  margin: 28px auto 32px;
  object-fit: cover;
}

/* 案例详情：上一页 / 下一页 */
.detail-pager {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  gap: 24px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid #e8e8e8;
}

.detail-pager-link {
  max-width: 46%;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: #333;
  text-decoration: none;
  -webkit-transition: color 0.2s ease;
  transition: color 0.2s ease;
}

.detail-pager-link.is-next {
  text-align: right;
  margin-left: auto;
}

.detail-pager-link:hover {
  color: #ed6c00;
}

.detail-pager-link.is-disabled {
  visibility: hidden;
  pointer-events: none;
}

.page-banner-crumb a {
  color: #fff;
  text-decoration: none;
}

.page-banner-crumb a:hover {
  text-decoration: underline;
}

/* ========== 液态 + 响应式适配 ========== */
@media screen and (max-width: 1199px) {
  html {
    font-size: calc(100vw / 128);
  }

  .nav-center {
    width: auto;
    min-width: 0;
    font-size: 1.5rem;
    gap: clamp(8px, 1.2vw, 20px);
    margin: 0 1vw;
  }

  .nav-right-item.phone span {
    display: none;
  }

  .product-center {
    min-height: 0;
    padding: 60px 40px;
  }

  .product-body {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }

  .product-nav {
    width: 100%;
    margin-bottom: 24px;
  }

  .product-showcase {
    width: 100%;
    height: 420px;
  }

  .product-visual {
    aspect-ratio: auto; /* 固定高度时取消比例，由 stretch 填满 */
    height: 100%;
  }

  .about-section {
    min-height: 0;
  }

  .about-content {
    padding: 60px 40px 80px;
  }

  .about-stats {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }

  .case-container {
    padding-left: 40px;
  }

  .case-head {
    padding-right: 40px;
  }

  .case-card {
    width: 46vw;
    -ms-flex: 0 0 46vw;
    flex: 0 0 46vw;
    min-width: 280px;
  }

  .footer-main {
    height: auto;
    padding: 40px;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }

  .site-footer {
    height: auto;
  }

  .footer-main > .footer-col:nth-child(2),
  .footer-main > .footer-col:nth-child(3),
  .footer-main > .footer-col:nth-child(4) {
    width: 28%;
    padding: 0 12px;
  }

  .footer-qr {
    margin-left: 24px;
  }

  .footer-hotline-num {
    font-size: 24px;
  }

  .footer-copy {
    padding: 16px 40px;
    height: auto;
  }

  .page-banner-title {
    font-size: 32px;
  }

  .page-banner-crumb {
    left: 40px;
  }

  .products-list {
    padding: 60px 40px 0;
  }

  .product-card {
    width: -webkit-calc(50% - 15px);
    width: calc(50% - 15px);
    margin-bottom: 50px;
  }

  .product-card:nth-child(odd) {
    margin-right: 30px;
  }

  .contact-section {
    padding: 60px 40px;
  }

  .contact-panel {
    height: auto;
    min-height: 0;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }

  .contact-info {
    width: 100%;
    max-width: none;
  }

  .contact-map {
    height: 360px;
  }

  .about-page-intro {
    padding: 60px 40px;
  }

  .about-page-intro-inner {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }

  .about-page-intro-left {
    padding-right: 0;
    margin-bottom: 40px;
  }

  .about-page-intro-right {
    width: 100%;
    max-width: 480px;
    height: 500px;
    max-height: none;
    min-height: 0;
    margin: 0 auto;
  }

  .about-qualify {
    padding: 20px 40px 60px;
  }

  .about-qualify-left {
    top: 24px;
    width: 649px;
    max-width: 42%;
  }

  .about-qualify-right img {
    height: auto;
    max-height: 760px;
    aspect-ratio: 1600 / 760;
  }

  .about-news {
    padding: 60px 40px 60px;
  }

  .services-list {
    padding: 60px 40px;
  }

  .detail-article {
    padding: 60px 40px 80px;
  }

  .detail-title {
    font-size: 26px;
  }

  .service-card {
    width: -webkit-calc(50% - 20px);
    width: calc(50% - 20px);
    margin-right: 40px;
  }

  .service-card:nth-child(3n) {
    margin-right: 40px;
  }

  .service-card:nth-child(2n) {
    margin-right: 0;
  }

  .service-card-img {
    width: 100%;
    height: auto;
    aspect-ratio: 495 / 320;
  }

  .about-news-body {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }

  .about-news-cards {
    width: 100%;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    margin-bottom: 24px;
  }

  .about-news-card {
    width: -webkit-calc(50% - 12px);
    width: calc(50% - 12px);
    margin-right: 24px;
  }

  .about-news-card:nth-child(2n) {
    margin-right: 0;
  }

  .about-news-card-img {
    width: 100%;
    height: auto;
    aspect-ratio: 495 / 320;
  }

  .about-news-list {
    padding-left: 0;
    width: 100%;
  }

  .right-list {
    padding-left: 0;
    width: 100%;
    margin-top: 24px;
  }

  .list-item {
    width: 100%;
  }
}

@media screen and (max-width: 767px) {
  html {
    font-size: calc(100vw / 37.5);
  }

  .site-header {
    /* lbbj750.png 1500×940，随屏宽等比缩放 */
    height: 62.6667vw; /* 940/1500 */
    min-height: 0;
    max-height: none;
    aspect-ratio: 1500 / 940;
  }

  .site-header .banner-slide img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center top;
  }

  .page-banner {
    height: 56vw;
    min-height: 200px;
    max-height: none;
  }

  .page-banner[data-banner="contact"],
  .page-banner[data-banner="about"],
  .page-banner[data-banner="services"] {
    height: 540px;
    min-height: 540px;
    max-height: 540px;
  }

  .page-banner-title {
    font-size: 28px;
  }

  .page-banner-crumb {
    left: 16px;
    bottom: 16px;
    font-size: 12px;
    max-width: calc(100% - 32px);
  }

  .products-list {
    padding: 40px 16px 0;
  }

  .product-card {
    width: 100%;
    margin-right: 0 !important;
    margin-bottom: 40px;
  }

  .contact-section {
    padding: 40px 16px;
  }

  .contact-info {
    padding: 28px 20px 24px;
  }

  .contact-company {
    font-size: 18px;
  }

  .contact-map {
    height: 240px;
  }

  .about-page-intro {
    padding: 40px 16px;
  }

  .about-page-intro-left {
    padding-right: 0;
    margin-bottom: 0;
  }

  /* 手机端无右侧配图，隐藏以免占位/异常滚动 */
  .about-page-intro-right {
    display: none;
  }

  .about-page-title {
    font-size: 28px;
  }

  .about-page-desc p {
    font-size: 16px;
    line-height: 30px;
  }

  /* 资质 / 动态：左右 16px 对齐 */
  .about-qualify,
  .about-news {
    padding: 40px 16px;
    background: #fff;
  }

  /* 手机：上文（无图）+ 下图 */
  .about-qualify-bg {
    background: none;
    height: auto;
    min-height: 0;
    padding: 0;
  }

  .about-qualify-inner {
    max-width: none;
    width: 100%;
  }

  .about-qualify-left {
    position: relative;
    left: auto;
    top: auto;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .about-qualify-desc {
    font-size: 15px;
    line-height: 1.8;
    color: #333;
    margin-top: 20px;
  }

  .about-qualify-media {
    display: block;
    margin: 28px 0 0;
    padding: 0;
    width: 100%;
  }

  .about-qualify-media img {
    display: block;
    width: 100%;
    height: auto;
  }

  .about-qualify-right img {
    height: auto;
    aspect-ratio: auto;
  }

  .about-sec-title {
    font-size: 24px;
  }

  .about-sec-mark {
    height: 22px;
    margin-right: 10px;
  }

  .about-news-inner {
    max-width: none;
    width: 100%;
  }

  .about-news-head {
    margin-bottom: 24px;
  }

  .services-list {
    padding: 40px 16px;
  }

  .detail-article {
    padding: 40px 16px 60px;
  }

  .detail-img {
    width: 100%;
    height: auto;
    aspect-ratio: 826 / 543;
    margin-left: auto;
    margin-right: auto;
  }

  .detail-title {
    font-size: 22px;
  }

  .detail-pager {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 16px;
  }

  .detail-pager-link,
  .detail-pager-link.is-next {
    max-width: 100%;
    text-align: left;
    margin-left: 0;
  }

  .detail-meta {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    gap: 12px;
  }

  .service-card {
    width: 100%;
    margin-right: 0 !important;
  }

  .about-news-card {
    width: 100%;
    margin-right: 0;
    margin-bottom: 24px;
  }

  .nav-wrapper {
    height: 56px;
    min-height: 56px;
    max-height: 56px;
    padding-left: 16px;
    padding-right: 8px;
  }

  .site-header-logo {
    width: 140px;
    min-width: 0;
    max-width: 160px;
  }

  .nav-toggle {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    margin-left: 0; /* 右区由 .nav-right 的 margin-left:auto 顶开 */
  }

  .nav-center {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    width: 100%;
    max-width: none;
    min-width: 0;
    max-height: calc(100vh - 56px);
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 12px 0;
    background: rgba(26, 45, 82, 0.96);
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: stretch;
    -ms-flex-align: stretch;
    align-items: stretch;
    display: none;
  }

  .nav-wrapper.is-open .nav-center {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
  }

  .nav-center-item {
    height: auto;
    padding: 0;
  }

  /* 无二级的一级项仍保留内边距 */
  .nav-center-item > a {
    display: block;
    padding: 12px 24px;
  }

  .nav-item-row {
    height: auto;
    min-height: 44px;
    padding: 12px 16px 12px 24px;
  }

  .nav-sub-toggle {
    display: block;
  }

  /* 手机端二级菜单：手风琴展开 */
  .nav-sub,
  .nav-services-dropdown {
    display: none;
    position: static;
    left: auto;
    top: auto;
    z-index: auto;
    min-width: 0;
    width: 100%;
    margin: 0;
    padding: 0 0 8px 24px;
    background: transparent;
    border-top: 0;
    -webkit-box-shadow: none;
    box-shadow: none;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
  }

  .nav-center-item.has-sub.is-expanded .nav-sub,
  .nav-center-item.has-sub.is-expanded .nav-services-dropdown {
    display: block;
  }

  .nav-sub a,
  .nav-services-dropdown a {
    display: block;
    padding: 10px 24px 10px 12px;
    font-size: 14px;
    line-height: 1.4;
    color: rgba(255, 255, 255, 0.78) !important;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    white-space: normal;
  }

  .nav-sub a:last-child,
  .nav-services-dropdown a:last-child {
    border-bottom: 0;
  }

  .nav-services-dropdown a:first-child::after {
    display: none;
  }

  .nav-services-dropdown a:hover,
  .nav-sub a:hover {
    color: #ed6c00 !important;
    background: transparent;
  }

  .nav-product-dropdown {
    display: none !important;
  }

  .nav-dropdown-mask {
    display: none !important;
  }

  /* 手机顶栏：电话 + 搜索 + 汉堡 */
  .nav-right {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-ordinal-group: 3;
    -ms-flex-order: 2;
    order: 2;
    margin-left: auto;
    height: 100%;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
  }

  .nav-toggle {
    -webkit-box-ordinal-group: 4;
    -ms-flex-order: 3;
    order: 3;
    margin-left: 0;
  }

  .nav-left {
    -webkit-box-ordinal-group: 2;
    -ms-flex-order: 1;
    order: 1;
  }

  .nav-center {
    -webkit-box-ordinal-group: 5;
    -ms-flex-order: 4;
    order: 4;
  }

  .nav-right-item.phone {
    position: relative;
    margin-right: 4px;
  }

  .nav-right-item.phone a {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    color: #fff;
  }

  /* 默认藏号码；点击图标后弹出显示 */
  .nav-right-item.phone span {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: -8px;
    z-index: 130;
    padding: 10px 14px;
    background: #fff;
    color: #1a2d52;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.04em;
    line-height: 1.3;
    white-space: nowrap;
    border-radius: 4px;
    -webkit-box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.18);
  }

  .nav-right-item.phone span::before {
    content: "";
    position: absolute;
    top: -6px;
    right: 18px;
    border-left: 6px solid transparent;
    border-right: 6px solid transparent;
    border-bottom: 6px solid #fff;
  }

  .nav-right-item.phone.is-show-num span {
    display: block;
  }

  .nav-right-item.phone img {
    width: 20px;
    height: 20px;
  }

  .nav-right-item.search {
    width: 44px;
    min-width: 44px;
    max-width: 44px;
    height: 100%;
    background: #1a2d52;
  }

  .nav-right-item.search .search-icon {
    width: 18px;
    height: 18px;
  }

  .banner-footer {
    bottom: 12px;
    height: 28px;
  }

  .banner-pager {
    left: 16px;
    gap: 10px;
    font-size: 12px;
  }

  .banner-pager-track {
    width: 72px;
  }

  /* 标题/亮点靠上；文案限左半侧，避免盖住右侧机器；底部留空给进度条 */
  .banner-caption {
    left: 16px;
    right: auto;
    width: 54%;
    max-width: 210px;
    top: 68px; /* 避开固定顶栏 */
    bottom: 48px; /* 避开进度条 */
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    max-height: none;
    overflow: hidden;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
    -webkit-box-pack: start;
    -ms-flex-pack: start;
    justify-content: flex-start; /* 不再沉底 */
  }

  .banner-caption-title {
    margin-bottom: 6px;
    font-size: 20px;
    -ms-flex-negative: 0;
    flex-shrink: 0;
  }

  .banner-caption-tags {
    margin-bottom: 14px;
    font-size: 11px;
    line-height: 1.45;
    -ms-flex-negative: 0;
    flex-shrink: 0;
  }

  .banner-caption-desc {
    margin-top: 0; /* 上移到标题下方空区 */
    margin-bottom: 12px;
    max-width: 100%;
    font-size: 12px;
    line-height: 1.55;
    text-align: left; /* 窄栏下两端对齐易显空旷 */
    display: -webkit-box;
    -webkit-line-clamp: 4; /* 收窄后多留几行 */
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .banner-caption-btn {
    -ms-flex-negative: 0;
    flex-shrink: 0;
    -ms-flex-item-align: start;
    align-self: flex-start;
    width: auto;
    padding: 8px 20px;
    font-size: 13px;
  }

  .banner-mouse {
    display: none;
  }

  .product-center {
    padding: 40px 16px;
  }

  .product-title,
  .about-title,
  .case-title {
    font-size: 28px;
    line-height: 1.3;
  }

  .product-head,
  .case-head {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    margin-bottom: 24px;
  }

  /* 手机：文案左、产品图右；隐藏下方信息卡大图 */
  .product-showcase {
    display: none;
  }

  .product-nav-list {
    gap: 20px;
  }

  .product-nav-item {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    gap: 12px;
    min-height: 72px;
    padding: 0;
  }

  .product-nav-text {
    -webkit-box-flex: 1;
    -ms-flex: 1 1 auto;
    flex: 1 1 auto;
    min-width: 0;
  }

  .product-nav-media {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-negative: 0;
    flex-shrink: 0;
    gap: 4px;
  }

  .product-nav-thumb {
    display: block;
    width: 96px;
    height: 64px;
    object-fit: contain;
  }

  .product-nav-more {
    display: -webkit-inline-box;
    display: -ms-inline-flexbox;
    display: inline-flex;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    letter-spacing: 1px;
    color: #444;
    text-decoration: none;
  }

  .product-nav-track {
    gap: 0;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding-top: 28px;
    padding-bottom: 96px;
  }

  .product-nav-dot {
    margin-top: 0;
  }

  .about-section {
    padding-bottom: 40px;
  }

  .about-content {
    padding: 40px 16px 0;
  }

  .about-desc {
    max-width: 100%;
  }

  .about-stats {
    width: 100%;
    max-width: 100%;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    justify-content: space-between;
  }

  .about-stat-item {
    width: 30%;
    -ms-flex: 0 0 30%;
    flex: 0 0 30%;
    margin-left: 0 !important;
  }

  .about-stat-item + .about-stat-item::before {
    display: none;
  }

  .about-stat-num-main {
    font-size: 32px;
  }

  .about-stat-label {
    font-size: 12px;
    line-height: 1.4;
  }

  .case-section {
    padding: 40px 0 48px;
  }

  .case-container {
    padding-left: 16px;
  }

  .case-head {
    padding-right: 16px;
  }

  .case-card {
    width: 85vw;
    -ms-flex: 0 0 85vw;
    flex: 0 0 85vw;
    min-width: 0;
    max-width: none;
  }

  .site-footer {
    height: auto;
  }

  .footer-main {
    height: auto;
    padding: 40px 16px 24px;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    -ms-flex-direction: row;
    flex-direction: row;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }

  .footer-brand {
    margin-right: 0;
    width: 100%;
    max-width: none;
    margin-bottom: 28px;
  }

  /* 产品中心 / 工程服务 / 关于我们：同一行三列 */
  .footer-main > .footer-col:nth-child(2),
  .footer-main > .footer-col:nth-child(3),
  .footer-main > .footer-col:nth-child(4) {
    -webkit-box-flex: 1;
    -ms-flex: 1 1 0;
    flex: 1 1 0;
    width: 33.33%;
    max-width: none;
    padding: 0 6px;
    -ms-flex-item-align: start;
    align-self: flex-start;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
  }

  .footer-main > .footer-col:nth-child(2)::before,
  .footer-main > .footer-col:nth-child(3)::before,
  .footer-main > .footer-col:nth-child(4)::before,
  .footer-main > .footer-col:nth-child(4)::after {
    display: none;
  }

  .footer-col-inner {
    width: 100%;
  }

  .footer-title {
    font-size: 15px;
    margin-bottom: 12px;
  }

  .footer-links {
    font-size: 12px;
  }

  .footer-links li {
    margin-bottom: 8px;
  }

  .footer-qr {
    margin-left: 0;
    margin-top: 24px;
    width: 100%;
    -webkit-box-align: start;
    -ms-flex-align: start;
    align-items: flex-start;
  }

  .footer-qr p {
    text-align: left;
  }

  .footer-hotline-num {
    font-size: 22px;
  }

  .footer-copy {
    height: auto;
    padding: 16px;
  }

  .footer-copy-text {
    font-size: 12px;
    line-height: 1.6;
  }
}

/* ========== 产品详情 ========== */
.pd-hero {
  position: relative;
  width: 100%;
  height: 87rem; /* 870 @1920 */
  height: 45.3125vw; /* 870/1920 */
  min-height: 320px;
  max-height: 870px;
  padding: 0 8.333vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #c5d9ee;
  overflow: hidden;
}

.pd-hero-bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

.pd-hero-inner {
  position: relative;
  z-index: 1;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  gap: 3vw;
  max-width: 1600px;
  height: 100%;
  margin: 0 auto;
  padding-top: 100px; /* 避开固定导航 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.pd-hero-text {
  width: 42%;
  max-width: 640px;
  color: #222;
  opacity: 0;
  -webkit-transform: translate3d(-80px, 0, 0);
  transform: translate3d(-80px, 0, 0);
}

.pd-hero-visual {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 48%;
  flex: 1 1 48%;
  max-width: 700px;
  text-align: center;
  overflow: hidden;
  opacity: 0;
  -webkit-transform: translate3d(80px, 0, 0);
  transform: translate3d(80px, 0, 0);
}

/* 入场：文字左滑入、机器右滑入 */
.pd-hero.is-ready .pd-hero-text {
  -webkit-animation: pdHeroInLeft 0.85s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
  animation: pdHeroInLeft 0.85s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
}

.pd-hero.is-ready .pd-hero-visual {
  -webkit-animation: pdHeroInRight 0.85s cubic-bezier(0.22, 0.61, 0.36, 1) 0.12s forwards;
  animation: pdHeroInRight 0.85s cubic-bezier(0.22, 0.61, 0.36, 1) 0.12s forwards;
}

@-webkit-keyframes pdHeroInLeft {
  from {
    opacity: 0;
    -webkit-transform: translate3d(-80px, 0, 0);
    transform: translate3d(-80px, 0, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}

@keyframes pdHeroInLeft {
  from {
    opacity: 0;
    -webkit-transform: translate3d(-80px, 0, 0);
    transform: translate3d(-80px, 0, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}

@-webkit-keyframes pdHeroInRight {
  from {
    opacity: 0;
    -webkit-transform: translate3d(80px, 0, 0);
    transform: translate3d(80px, 0, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}

@keyframes pdHeroInRight {
  from {
    opacity: 0;
    -webkit-transform: translate3d(80px, 0, 0);
    transform: translate3d(80px, 0, 0);
  }
  to {
    opacity: 1;
    -webkit-transform: none;
    transform: none;
  }
}

.pd-hero-title {
  margin: 0 0 16px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(32px, 3.542vw, 68px); /* 稿 68 */
  font-weight: bold;
  line-height: 1.2; /* 稿 36 过紧，保可读；大屏仍贴近稿 */
  letter-spacing: 0;
  color: #242424;
  font-feature-settings: "kern" on;
}

.pd-hero-tags {
  margin: 0 0 20px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(14px, 1.042vw, 20px); /* 稿 20 */
  font-weight: normal;
  line-height: normal;
  letter-spacing: 0;
  color: #000;
  font-feature-settings: "kern" on;
}

.pd-hero-desc {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(14px, 0.938vw, 18px); /* 稿 18 */
  font-weight: normal;
  line-height: 34px;
  letter-spacing: 0;
  color: #676767;
  text-align: justify;
  font-feature-settings: "kern" on;
}

.pd-hero-visual img {
  display: block;
  width: 100%;
  max-width: 652px;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
  -webkit-transition: -webkit-transform 0.45s ease;
  transition: transform 0.45s ease;
}

.pd-hero-visual:hover img {
  -webkit-transform: scale(1.05);
  transform: scale(1.05);
}

.pd-section-title {
  margin: 0 0 36px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(24px, 1.667vw, 32px);
  font-weight: bold;
  line-height: 1.3;
  color: #222;
}

/* 产品特点：标题左上、机器左下溢出 30% 裁切、列表靠右（稿 518×542 / 标题 46px #1E335E） */
.pd-features {
  position: relative;
  width: 100%;
  min-height: 36.458vw; /* ≈700/1920 */
  padding: 5.729vw 8.333vw 0; /* top≈110 */
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #eef4fa url("../img/tdbj.jpg") center / cover no-repeat;
  overflow: hidden;
}

.pd-features-inner {
  position: relative;
  max-width: 1600px;
  margin: 0 auto;
  min-height: 30vw;
  padding-bottom: 4vw;
}

.pd-features-title {
  position: relative;
  z-index: 2;
  margin: 0 0 28px;
  font-size: clamp(28px, 2.396vw, 46px); /* 稿 46 */
  line-height: 1.2;
  color: #1e335e;
}

/* 机器：稿约 518 宽，左下，向下溢出自身 30% 后裁切 */
.pd-features-visual {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 26.979vw; /* 518/1920 */
  max-width: 518px;
  z-index: 1;
  pointer-events: none;
  -webkit-transform: translateY(30%);
  transform: translateY(30%);
}

.pd-features-visual img {
  display: block;
  width: 100%;
  height: auto;
}

/* 特点列表靠右，避开左侧机器 */
.pd-features-content {
  position: relative;
  z-index: 2;
  width: 58%;
  max-width: 900px;
  margin-left: auto;
  min-width: 0;
  padding-top: 8px;
}

.pd-feature-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 28px 40px;
}

.pd-feature-item {
  position: relative;
  width: calc(50% - 20px);
  padding-left: 14px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.pd-feature-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 3px;
  height: 16px;
  background: #ed6d01;
}

.pd-feature-name {
  margin: 0 0 8px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 18px;
  font-weight: bold;
  line-height: 1.4;
  color: #222;
}

.pd-feature-desc {
  margin: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: #555;
}

/* 技术参数：左标题 + 右表（表宽 1185，页边 160） */
.pd-params {
  width: 100%;
  padding: 4.167vw 8.333vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
}

.pd-params-inner {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  -webkit-box-pack: justify;
  -ms-flex-pack: justify;
  justify-content: space-between;
  gap: 2.083vw; /* ≈40 */
  max-width: none;
  margin: 0;
}

.pd-params-inner .pd-section-title {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 auto;
  flex: 0 0 auto;
  margin: 0;
  padding-top: 12px; /* 与表头文字视觉对齐 */
  white-space: nowrap;
}

.pd-params-table-wrap {
  width: 61.719vw; /* 1185/1920 */
  max-width: 1185px;
  min-width: 0;
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  overflow-x: auto;
}

.pd-params-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  border: 0;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  color: #333;
}

.pd-params-table th,
.pd-params-table td {
  width: 50%;
  height: 65px;
  padding: 0 32px;
  text-align: left;
  vertical-align: middle;
  border: 0;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.pd-params-table thead th {
  background: #e7ecf7;
  color: #333;
  font-weight: bold;
}

.pd-params-table tbody tr:nth-child(odd) {
  background: #fff;
}

.pd-params-table tbody tr:nth-child(even) {
  background: #f5f6f8;
}

/* 应用领域：上 100 / 左 ~160 / 卡片 664，进度条贴右屏边 */
.pd-fields {
  position: relative;
  width: 100%;
  padding: 100px 0 80px 8.333vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #eef4fb 55%, #e6eef8 100%);
}

/* 底部波浪装饰线 */
.pd-fields::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 42%;
  pointer-events: none;
  opacity: 0.55;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='200' viewBox='0 0 1200 200' fill='none'%3E%3Cpath d='M0 40 Q75 10 150 40 T300 40 T450 40 T600 40 T750 40 T900 40 T1050 40 T1200 40' stroke='%23c5d6ea' stroke-width='1.2'/%3E%3Cpath d='M0 70 Q75 40 150 70 T300 70 T450 70 T600 70 T750 70 T900 70 T1050 70 T1200 70' stroke='%23c5d6ea' stroke-width='1.2'/%3E%3Cpath d='M0 100 Q75 70 150 100 T300 100 T450 100 T600 100 T750 100 T900 100 T1050 100 T1200 100' stroke='%23c5d6ea' stroke-width='1.2'/%3E%3Cpath d='M0 130 Q75 100 150 130 T300 130 T450 130 T600 130 T750 130 T900 130 T1050 130 T1200 130' stroke='%23c5d6ea' stroke-width='1.2'/%3E%3Cpath d='M0 160 Q75 130 150 160 T300 160 T450 160 T600 160 T750 160 T900 160 T1050 160 T1200 160' stroke='%23c5d6ea' stroke-width='1.2'/%3E%3C/svg%3E");
  background-repeat: repeat-x;
  background-position: center bottom;
  background-size: 1200px 200px;
}

.pd-fields-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: none;
  margin: 0;
}

.pd-fields-inner .pd-section-title {
  margin-bottom: 40px;
}

.pd-fields-track {
  width: 100%;
  overflow: hidden;
}

.pd-fields-list {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 2.969vw; /* 57/1920 */
  -webkit-transition: -webkit-transform 0.35s ease;
  transition: transform 0.35s ease;
  will-change: transform;
}

.pd-field-card {
  -webkit-box-flex: 0;
  -ms-flex: 0 0 25.781vw; /* 495/1920 */
  flex: 0 0 25.781vw;
  width: 25.781vw;
  max-width: 495px;
  min-width: 0;
}

.pd-field-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 495 / 320;
  object-fit: cover;
  border-radius: 0;
}

.pd-field-name {
  margin: 18px 0 10px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 20px;
  font-weight: bold;
  line-height: 1.4;
  color: #222;
}

.pd-field-desc {
  margin: 0;
  max-width: 100%;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.7;
  color: #666;
}

.pd-field-link {
  color: inherit;
  text-decoration: none;
  -webkit-transition: color 0.25s ease;
  transition: color 0.25s ease;
}

.pd-field-name .pd-field-link:hover,
.pd-field-desc .pd-field-link:hover {
  color: #ed6c00;
}

.pd-fields-pager {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
  margin-top: 40px;
  width: 100%;
  max-width: none;
}

/* 与首页案例左右键一致：白底 + 悬浮紫色 */
.pd-fields-btn {
  width: 43px;
  height: 43px;
  padding: 0;
  border: 1px solid #d0d4dc;
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
  display: -webkit-inline-box;
  display: -ms-inline-flexbox;
  display: inline-flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -ms-flex-negative: 0;
  flex-shrink: 0;
  -webkit-transition: background 0.2s ease, border-color 0.2s ease;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.pd-fields-btn img {
  display: block;
  width: 7px;
  height: 12px;
  /* 默认黑色箭头 */
  -webkit-filter: brightness(0);
  filter: brightness(0);
  -webkit-transition: -webkit-filter 0.2s ease;
  transition: filter 0.2s ease;
}

.pd-fields-btn.prev img {
  -webkit-transform: scaleX(-1);
  transform: scaleX(-1);
}

.pd-fields-btn:hover {
  background: #4d3594;
  border-color: #4d3594;
}

.pd-fields-btn:hover img {
  /* 悬浮白色箭头 */
  -webkit-filter: brightness(0) invert(1);
  filter: brightness(0) invert(1);
}

.pd-fields-progress {
  -webkit-box-flex: 1;
  -ms-flex: 1 1 auto;
  flex: 1 1 auto;
  height: 1px; /* 灰色轨道拉到屏边 */
  background: #d8d8d8;
  position: relative;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
}

/* 固定装饰橙线：170×3，不随轮播移动 */
.pd-fields-progress-bar {
  display: block;
  width: 170px;
  height: 3px;
  background: #ed6d01;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

/* 应用实例：四图 378×540，间距 30，左右 160 */
.pd-examples {
  width: 100%;
  padding: 4.167vw 8.333vw 5.208vw;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
  background: #fff;
}

.pd-examples-inner {
  max-width: none;
  margin: 0;
}

.pd-examples-grid {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  gap: 1.563vw; /* 30/1920 */
}

.pd-example-card {
  position: relative;
  -webkit-box-flex: 0;
  -ms-flex: 0 0 19.688vw; /* 378/1920 */
  flex: 0 0 19.688vw;
  width: 19.688vw;
  max-width: 378px;
  height: 28.125vw; /* 540/1920 */
  max-height: 540px;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: auto;
}

.pd-example-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pd-example-cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  top: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: end;
  -ms-flex-align: end;
  align-items: flex-end;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  padding: 0 16px 20px;
  font-family: "Source Han Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  font-weight: bold;
  color: #fff;
  text-align: center;
  /* 实例底部蓝色渐变遮罩 */
  background: -webkit-linear-gradient(top, #3573d100 30%, #2f5287 100%);
  background: linear-gradient(180deg, #3573d100 30%, #2f5287 100%);
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

/* 页脚上方分割线：1px #D8D8D8，左侧约 9cm 橙色（≈340px） */
.pd-footer-line {
  width: 100%;
  height: 1px;
  background: -webkit-linear-gradient(
    left,
    #ed6d01 0,
    #ed6d01 340px,
    #d8d8d8 340px,
    #d8d8d8 100%
  );
  background: linear-gradient(
    to right,
    #ed6d01 0,
    #ed6d01 340px,
    #d8d8d8 340px,
    #d8d8d8 100%
  );
}

/* 页脚社交图标 */
.footer-social {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.footer-social-btn {
  position: relative;
  display: inline-block;
  width: 30px;
  height: 30px;
  line-height: 0;
}

.footer-social-btn img {
  display: block;
  width: 30px;
  height: 30px;
}

.footer-social-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  -webkit-transform: translateX(-50%);
  transform: translateX(-50%);
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 12px;
  color: #333;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  -webkit-transition: opacity 0.2s ease, visibility 0.2s ease;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 5;
}

.footer-social-tip::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  margin-left: -5px;
  border: 5px solid transparent;
  border-top-color: #fff;
}

.footer-social-tip-qr {
  padding: 8px;
  white-space: normal;
}

.footer-social-tip-qr img {
  width: 128px;
  height: 128px;
}

.footer-social-btn:hover .footer-social-tip {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 1199px) {
  .pd-hero {
    height: auto;
    min-height: 480px;
    max-height: none;
    padding-top: 0;
    padding-bottom: 40px;
  }

  .pd-hero-inner {
    height: auto;
    padding-top: 100px;
  }

  .pd-hero-inner {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
  }

  .pd-hero-text,
  .pd-features-content {
    width: 100%;
    max-width: none;
  }

  .pd-hero-visual {
    -ms-flex: 0 0 auto;
    flex: 0 0 auto;
    max-width: 480px;
    width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .pd-features {
    min-height: auto;
    padding: 48px 40px 0;
    background-size: cover;
    background-position: center;
  }

  /* 小屏：标题 → 列表 → 机器左下 */
  .pd-features-inner {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 20px;
    min-height: 0;
    padding-bottom: 0;
  }

  .pd-features-title {
    margin-bottom: 8px;
  }

  .pd-features-content {
    width: 100%;
    max-width: none;
    margin-left: 0;
    padding-top: 0;
    -webkit-box-ordinal-group: 2;
    -ms-flex-order: 1;
    order: 1;
  }

  .pd-features-visual {
    position: relative;
    left: auto;
    bottom: auto;
    width: 55%;
    max-width: 280px;
    -ms-flex-item-align: center;
    align-self: center;
    margin-left: auto;
    margin-right: auto;
    -webkit-box-ordinal-group: 3;
    -ms-flex-order: 2;
    order: 2;
    pointer-events: auto;
    -webkit-transform: translateY(30%);
    transform: translateY(30%);
  }

  .pd-feature-item {
    width: 100%;
  }

  .pd-params-inner {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -ms-flex-direction: column;
    flex-direction: column;
    gap: 24px;
  }

  .pd-params-inner .pd-section-title {
    padding-top: 0;
  }

  .pd-params-table-wrap {
    width: 100%;
    max-width: none;
  }

  .pd-examples-grid {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
  }

  .pd-field-card {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 80%;
    flex: 0 0 80%;
    width: 80%;
    max-width: none;
  }

  .pd-example-card {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 calc(50% - 15px);
    flex: 0 0 calc(50% - 15px);
    width: auto;
    max-width: none;
    height: auto;
    max-height: none;
    aspect-ratio: 378 / 540;
  }
}

@media (max-width: 767px) {
  .pd-hero {
    height: auto;
    min-height: 420px;
    max-height: none;
    padding: 0 20px 40px;
  }

  .pd-hero-inner {
    padding-top: 80px;
  }

  .pd-features,
  .pd-params,
  .pd-examples {
    padding-left: 20px;
    padding-right: 20px;
  }

  .pd-fields {
    padding: 60px 0 48px 20px;
  }

  .pd-field-card {
    -ms-flex: 0 0 85%;
    flex: 0 0 85%;
    width: 85%;
  }

  .pd-examples-grid {
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    gap: 12px;
  }

  .pd-example-card {
    -webkit-box-flex: 0;
    -ms-flex: 0 0 calc(50% - 6px);
    flex: 0 0 calc(50% - 6px);
    width: calc(50% - 6px);
    max-width: none;
    height: auto;
    max-height: none;
    aspect-ratio: 378 / 540; /* 稿 378×540，等比例缩小 */
  }

  .pd-footer-line {
    background: -webkit-linear-gradient(
      left,
      #ed6d01 0,
      #ed6d01 80px,
      #d8d8d8 80px,
      #d8d8d8 100%
    );
    background: linear-gradient(
      to right,
      #ed6d01 0,
      #ed6d01 80px,
      #d8d8d8 80px,
      #d8d8d8 100%
    );
  }
}

/* ========== 全站动效：飞入 / 悬浮放大 ========== */
/*.anim-reveal {*/
/*  opacity: 0;*/
/*  -webkit-transform: translate3d(0, 48px, 0);*/
/*  transform: translate3d(0, 48px, 0);*/
/*  -webkit-transition: opacity 0.7s ease, -webkit-transform 0.7s ease;*/
/*  transition: opacity 0.7s ease, transform 0.7s ease;*/
/*  -webkit-transition-delay: 0s;*/
/*  transition-delay: 0s;*/
/*}*/

.anim-reveal.anim-from-left {
  -webkit-transform: translate3d(-48px, 0, 0);
  transform: translate3d(-48px, 0, 0);
}

.anim-reveal.anim-from-right {
  -webkit-transform: translate3d(48px, 0, 0);
  transform: translate3d(48px, 0, 0);
}

.anim-reveal.anim-from-scale {
  -webkit-transform: scale(0.92);
  transform: scale(0.92);
}

.anim-reveal.is-in {
  opacity: 1;
  -webkit-transform: none;
  transform: none;
}

.page-banner-title,
.page-banner-crumb {
  opacity: 0;
  -webkit-transition: opacity 0.7s ease, -webkit-transform 0.7s ease;
  transition: opacity 0.7s ease, transform 0.7s ease;
}

/* 标题需保持水平垂直居中，入场只做轻微上移 */
.page-banner-title {
  -webkit-transform: translate(-50%, calc(-50% + 24px));
  -ms-transform: translate(-50%, calc(-50% + 24px));
  transform: translate(-50%, calc(-50% + 24px));
}

.page-banner-crumb {
  -webkit-transform: translate3d(0, 24px, 0);
  transform: translate3d(0, 24px, 0);
}

.page-banner.is-ready .page-banner-title {
  opacity: 1;
  -webkit-transform: translate(-50%, -50%);
  -ms-transform: translate(-50%, -50%);
  transform: translate(-50%, -50%);
}

.page-banner.is-ready .page-banner-crumb {
  opacity: 1;
  -webkit-transform: none;
  transform: none;
  -webkit-transition-delay: 0.15s;
  transition-delay: 0.15s;
}

/* 卡片图：裁切 + 悬浮放大 */
.product-card,
.case-card,
.service-card,
.about-news-card,
.pd-field-card,
.pd-example-card,
.product-visual,
.about-page-intro-right {
  overflow: hidden;
}

.product-card-img,
.case-card-img,
.service-card-img,
.about-news-card-img,
.pd-field-img,
.pd-example-card > img,
.about-page-intro-right img,
.product-visual-img {
  -webkit-transition: -webkit-transform 0.45s ease;
  transition: transform 0.45s ease;
  -webkit-transform: scale(1);
  transform: scale(1);
}

.product-card:hover .product-card-img,
.case-card:hover .case-card-img,
.service-card:hover .service-card-img,
.about-news-card:hover .about-news-card-img,
.pd-field-card:hover .pd-field-img,
.pd-example-card:hover > img,
.about-page-intro-right:hover img,
.product-showcase:hover .product-visual-img {
  -webkit-transform: scale(1.06);
  transform: scale(1.06);
}

.product-card,
.case-card,
.service-card,
.about-news-card,
.pd-example-card {
  -webkit-transition: -webkit-box-shadow 0.35s ease, -webkit-transform 0.35s ease;
  transition: box-shadow 0.35s ease, transform 0.35s ease;
}

.product-card:hover,
.service-card:hover,
.about-news-card:hover {
  -webkit-transform: translateY(-4px);
  transform: translateY(-4px);
}

.product-info-more,
.product-nav-more,
.case-card-link,
.case-card-name,
.about-more,
.product-more,
.about-news-more,
.list-item-link,
.about-news-card-link,
.about-news-card-title,
.list-item-title,
.pd-field-link {
  -webkit-transition: color 0.25s ease, opacity 0.25s ease, letter-spacing 0.25s ease;
  transition: color 0.25s ease, opacity 0.25s ease, letter-spacing 0.25s ease;
}

.product-info-more:hover,
.product-nav-more:hover,
.case-card-link:hover,
.case-card-name:hover,
.about-more:hover,
.product-more:hover,
.about-news-more:hover,
.list-item-link:hover,
.about-news-card-link:hover,
.about-news-card-title:hover,
.list-item-title:hover,
.pd-field-link:hover {
  letter-spacing: 0.04em;
  opacity: 0.85;
}

.footer-links a {
  -webkit-transition: color 0.25s ease, padding-left 0.25s ease;
  transition: color 0.25s ease, padding-left 0.25s ease;
}

.footer-links a:hover {
  padding-left: 4px;
  color: #ed6c00;
}

@media (prefers-reduced-motion: reduce) {
  .anim-reveal,
  .page-banner-title,
  .page-banner-crumb,
  .pd-hero-text,
  .pd-hero-visual,
  .product-card-img,
  .case-card-img,
  .service-card-img,
  .about-news-card-img,
  .pd-field-img,
  .pd-example-card > img,
  .about-page-intro-right img,
  .product-visual-img,
  .product-card,
  .case-card,
  .service-card,
  .about-news-card,
  .pd-example-card,
  .banner-slide {
    -webkit-transition: none !important;
    transition: none !important;
    -webkit-animation: none !important;
    animation: none !important;
    opacity: 1 !important;
  }

  /* crumb / 卡片等可清 transform；标题必须保留居中 */
  .anim-reveal,
  .page-banner-crumb,
  .pd-hero-text,
  .pd-hero-visual,
  .product-card-img,
  .case-card-img,
  .service-card-img,
  .about-news-card-img,
  .pd-field-img,
  .pd-example-card > img,
  .about-page-intro-right img,
  .product-visual-img,
  .product-card,
  .case-card,
  .service-card,
  .about-news-card,
  .pd-example-card,
  .banner-slide {
    -webkit-transform: none !important;
    transform: none !important;
  }

  .page-banner-title {
    -webkit-transform: translate(-50%, -50%) !important;
    -ms-transform: translate(-50%, -50%) !important;
    transform: translate(-50%, -50%) !important;
  }
}

/* IE10/11 flex gap 兜底 */
@media screen and (-ms-high-contrast: active), (-ms-high-contrast: none) {
  .case-card {
    margin-right: 24px;
  }

  .banner-pager-track {
    margin-left: 14px;
    margin-right: 14px;
  }

  .product-nav {
    margin-right: 40px;
  }
}

/* 顶栏搜索面板 */
.nav-search-panel {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 200;
  width: 100%;
  height: 100%;
  display: none;
}

.nav-search-panel.is-open {
  display: block;
}

.nav-search-mask {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
}

.nav-search-box {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 720px;
  margin: 80px auto 0;
  padding: 20px 16px;
  background: #fff;
  -webkit-box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.nav-search-form {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  gap: 8px;
}

.nav-search-input {
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  min-width: 0;
  height: 44px;
  padding: 0 14px;
  border: 1px solid #d0d6e2;
  font-size: 15px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.nav-search-submit {
  height: 44px;
  padding: 0 18px;
  border: 0;
  background: #1a2d52;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.nav-search-close {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  font-size: 28px;
  line-height: 1;
  color: #666;
  cursor: pointer;
  -ms-flex-negative: 0;
  flex-shrink: 0;
}

.nav-search-links {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  gap: 12px 20px;
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid #eee;
}

.nav-search-links a {
  font-size: 14px;
  color: #1a2d52;
}

.nav-search-links a:hover {
  color: #ed6c00;
}

@media screen and (max-width: 767px) {
  .nav-search-box {
    margin: 56px 0 0;
    max-width: none;
    border-radius: 0;
  }
}


/* ========== 异常页（404 / 403 / 500）========== */
.error-body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(61, 143, 212, 0.18), transparent 60%),
    linear-gradient(180deg, #f0f5fa 0%, var(--bg) 45%, #eef2f6 100%);
}

.error-page {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  min-height: 100vh;
  padding: 40px 24px 60px;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

.error-logo {
  display: block;
  margin: 0 auto 8vh;
}

.error-logo img {
  display: block;
  height: 48px;
  width: auto;
}

.error-content {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
  width: 100%;
  max-width: 560px;
  text-align: center;
}

.error-code {
  margin: 0;
  font-size: 120px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--blue);
  opacity: 0.22;
}

.error-title {
  margin: 16px 0 0;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

.error-desc {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--muted);
}

.error-home-btn {
  display: inline-block;
  margin-top: 36px;
  min-width: 160px;
  padding: 14px 36px;
  background: #ed6c00;
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border-radius: 4px;
  -webkit-transition: background 0.2s ease, -webkit-transform 0.2s ease;
  transition: background 0.2s ease, transform 0.2s ease;
}

.error-home-btn:hover {
  background: #d96200;
  color: #fff;
  -webkit-transform: translateY(-1px);
  transform: translateY(-1px);
}

@media screen and (max-width: 767px) {
  .error-logo {
    margin-bottom: 6vh;
  }

  .error-logo img {
    height: 40px;
  }

  .error-code {
    font-size: 88px;
  }

  .error-title {
    font-size: 22px;
  }

  .error-desc {
    font-size: 14px;
  }

  .error-home-btn {
    margin-top: 28px;
    min-width: 140px;
    padding: 12px 28px;
    font-size: 15px;
  }
}